Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quem dirigiu o show com o código de produção k2708?
 ###Tabelas: CREATE TABLE season_schedule (season_schedule_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Opponent VARCHAR, Score VARCHAR, Result VARCHAR, Record VARCHAR) CREATE TABLE season_4_1998 (season_4_1998_id AUTO_INCREMENT PRIMARY KEY, Series # INT, Season # INT, Title VARCHAR, Directed by VARCHAR, Original air date VARCHAR, Production code VARCHAR) CREATE TABLE season_3_1998–99 (season_3_1998–99_id AUTO_INCREMENT PRIMARY KEY, Series # INT, Season # INT, Title VARCHAR, Directed by VARCHAR, Written by VARCHAR, Original air date VARCHAR) CREATE TABLE administered_by_independent_administrative_institutions (administered_by_independent_administrative_institutions_id AUTO_INCREMENT PRIMARY KEY, English Name VARCHAR, Japanese orthography VARCHAR, Pronouciation VARCHAR, abbreviation VARCHAR, Provider(IAI) VARCHAR, Foundation INT) CREATE TABLE topographical_survey (topographical_survey_id AUTO_INCREMENT PRIMARY KEY, Name of Village VARCHAR, Name in Syriac VARCHAR, Number of Believers INT, Number of Priests INT, Number of Churches INT)  
SELECT Directed by FROM season_4_1998 WHERE Production code = k2708